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Finding the Fourth Proportional to 6,457.13, 9,672.54 and 5,918.92

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Solution

The fourth proportional to 6,457.13, 9,672.54 and 5,918.92 is: 8,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.13 : 9,672.54 = 5,918.92 : x
  2. Step 2: Convert to fraction form
    6,457.13/9,672.54 = 5,918.92/x
  3. Step 3: Cross multiply
    6,457.13x = 9,672.54 × 5,918.92
  4. Step 4: Simplify right side
    6,457.13x = 57,251,012.62
  5. Step 5: Solve for x
    x = 57,251,012.62/6,457.13
  6. Step 6: Final answer
    x = 8,866.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.